Measuring current transformers of the
W…AB(P) series
W-AB(P)_D00074_00_D_XXEN/05.2014
Measuring current transformers of the
W…AB(P) series
Product description
Measuring current transformers of the W…-AB series are measuring current transformers
which in combination with devices of the RCMA420/423 resp. RCMS460/490 series convert
AC and DC currents into evaluable measurement signals. Connection to the respective devices
is via a five-wire or six-wire cable. The CTs can be used in DC, AC, and 3(N) AC systems. If the
measuring current transformers are to be connected to an RCMS460/490 system, one AN420
or AN110 power supply unit is required for six measuring current transformers each.
The measuring current transformers of the W35ABP and W60ABP series feature an integrated
Mumetal shield.
Standards
W60AB measuring current transformer
Device features
• W20AB…W60AB for AC/DC sensitive
RCMA420 residual current monitors
• W20AB…W210AB for RCMS460/490
residual current monitoring systems or
for RCMA423 residual current monitors
• W35ABP and W60ABP for RCMS460/490
and for RCMA420/423 residual current
monitors. For use in systems where shortterm load currents are likely to occur.
Approvals
2
W-AB(P)_D00074_00_D_XXEN/05.2014
W…AB series measuring current transformers comply with the device standards:
IEC 61869-1.
Installation instructions
• Make sure that all live conductors are routed through the measuring current transformer
• Do not route shielded conductors through the measuring current transformer
• As a general principle, the PE conductor und low-resistance conductor loops must not
be passed through the measuring current transformer! Otherwise the applied AC/DC
sensitive measurement technique can result in high currents being induced into the
conductor loop.
W…AB(P) series measuring current transformers
Wiring diagram
I(∆n) ≤ 500 mA
W…AB(P)
I(∆n) ≤ 500 mA
I(∆n) > 500 mA
Connection to the RCMS460/490 residual current monitor using
the WXS-… connecting cable.
W…AB(P)
I(∆n) > 500 mA
Connection to the RCMA420/423 residual current monitor using
the WX-… connecting cable.
Colour coding for WXS… and WX…:
k = yellow, l = green, -12 V = black, GND = brown, +12 V = red, Test (T) = orange
W-AB(P)_D00074_00_D_XXEN/05.20143
W…AB(P) series measuring current transformers
Technical data
Ordering information
Insulation coordination acc. to IEC 60664-1/IEC 60664-3
Rated voltage
Rated impulse voltage/pollution degree
800 V
8 kV/3
Supply voltage
Supply voltage US
Operating range of US
Power consumption DC ± 12 V
0.95…1.05 x US
≤ 2.5 VA
CT circuit
Rated primary residual current W20AB
Rated primary residual current W35AB(P)…W120AB
Rated primary residual current W210AB
Rated continuous thermal current Icth
Rated short-time thermal current Ith Rated dynamic current Idyn 10…500 mA
10 mA…10 A
300 mA…10 A
40 A
2.4 kA/1 s
6.0 kA/40 ms
Mounting
Inside diameter
Type
Art. No.
20 mm
120 mm
210 mm
W20AB
W35AB
W35ABP
W60AB
W60ABP
W120AB
W210AB
B 9808 0008
B 9808 0016
B 9808 0051
B 9808 0026
B 9808 0052
B 9808 0041
B 9808 0040
Length
Type
Art. No.
1m
2.5 m
5m
10 m
1m
2.5 m
5m
10 m
WX-100
WX-250
WX-500
WX-1000
WXS-100
WXS-250
WXS-500
WXS-1000
B 9808 0503
B 9808 0504
B 9808 0505
B 9808 0511
B 9808 0506
B 9808 0507
B 9808 0508
B 9808 0509
35 mm
Mounting brackets,
DIN rail
60 mm
Mounting brackets
Connecting wires
For device
Environment/EMC
EMC
IEC 62020
Operating temperature -10…+55 °C
Climatic class acc. to IEC 60721
Stationary use (IEC 60721-3-3)
3K5 (except condensation and formation of ice)
Transport (IEC 60721-3-2)
2K5 (except condensation and formation of ice)
Long-time storage (IEC 60721-3-1)
1K5 (except condensation and formation of ice)
Classification of mechanical conditions IEC 60721
Stationary use (IEC 60721-3-3)
3M4
Transport (IEC 60721-3-2)
2M2
Long-time storage (IEC 60721-3-1)
1M3
RCMA420/423
RCMS460/490
Control cable LiYY flexible, 6 x AWG 20 (6 x 0.56 mm²),
approved by UL 2464
Connection
Type of connection
plug-in connectors
Connection RCMA/RCMS measuring current transformers see table “connecting cables”
Other
Degree of protection, internal components (IEC 60529) IP40
Degree of protection, terminals (IEC 60529)
IP20
Screw mounting
fillister head screw M5 acc. to DIN7985
DIN rail mounting (W20AB… W60AB(P) only)
Snap-on mounting
Flammability class
UL94 V-HB
Documentation number
D00074
Accessories
Type designation
For device
Art. No.
Snap-on mounting
W20AB, W35AB(P)
W60AB(P)
B 9808 0501
B 9808 0502
Suitable system components
Type
designation
Supply voltage US
Type
Art. No.
AC 16…72 V/DC 9,6…94 V
DC, AC 42…66 Hz
AN420-1
B 7405 3099
AC/DC 70…276 V
DC, AC 42…460 Hz
AN420-2
B 9405 3100
AC 20…60 V; DC 18…72 V
DC, AC 50…60 Hz
AN110-1
B 9405 3101
AC 90…264 V; DC 100…353 V
DC, AC 50…60 Hz
AN110-2
B 9405 3102
Power supply
units
Selection list
4
W-AB(P)_D00074_00_D_XXEN/05.2014
Type
RCMA420
W20AB
W35AB(P)
W60AB(P)
W120AB
W210AB
–
–
RCMA423
RCMS460/490
W…AB(P) series measuring current transformers
Dimension diagram
Dimensions (mm)
Type
A
W20AB
W35AB(P)
W60AB(P)
W120AB
W210AB
30
30
37
37
45
B
C
D
56.3 50 76.4
79.2 62 99.5
116.4 79 135
191.5 116.5 210
304.5 173 323
E
F
48.5 ø 20
55 ø 35
67 ø 60
67 ø 120
80 ø 210
G
Weight
H
29.8 16.4
41.7 20
60.4 24
98 33.5
154.5 45
180 g
350 g
570 g
1920 g
5800 g
Tolerance: ± 0.5 mm
Mounting details
Snap-on mounting on DIN rail, for vertical or horizontal mounting:
W20AB, W35AB(P), W60AB(P)
Screw mounting with mounting brackets:
W20AB, W35AB(P), W60AB(P)
Screw mounting: W120AB, W210AB
Dimensions (mm)
Type
Dimensions (mm)
A
B
C
D
49
31.4
65
18.6
W35 (mounting with 2 mounting brackets diagonal)
49
49.8
65
12.1
W35AB(P) (mounting with 2 mounting brackets diagonal)
56
66
72
17.7
W60AB(P) (mounting with 3 mounting brackets diagonal)
81
103
90.6
65
W120AB (screw mounting)
98
180 117.1
83
W210AB (screw mounting)
Dimensions in mm
Tolerance for screw mounting with mounting brackets: ± 1.5 mm
Type
A
B
W20AB
W35AB(P)
W60AB(P)
43.5
43.5
50
32
32
39
W-AB(P)_D00074_00_D_XXEN/05.20145
BENDER Group
W-AB(P)_D00074_00_D_XXEN / 05.2014 / Schw / pdf / © Bender GmbH & Co. KG, Germany – Subject to change! The specified standards take into account the version that was valid at the time of printing.
Bender GmbH & Co. KG
P.O. Box 1161 • 35301 Gruenberg • Germany
Londorfer Strasse 65 • 35305 Gruenberg • Germany
Tel.: +49 6401 807-0 • Fax: +49 6401 807-259
E-Mail: [email protected] • www.bender.de